VectorImage::GetFrameAtSize(const IntSize& aSize,
uint32_t aWhichFrame,
uint32_t aFlags)
{
MOZ_ASSERT(aWhichFrame <= FRAME_MAX_VALUE);
if (aSize.IsEmpty()) {
return nullptr;
}
if (aWhichFrame > FRAME_MAX_VALUE) {
return nullptr;
}
if (mError || !mIsFullyLoaded) {
return nullptr;
}
// Make our surface the size of what will ultimately be drawn to it.
// (either the full image size, or the restricted region)
RefPtr<DrawTarget> dt = gfxPlatform::GetPlatform()->
CreateOffscreenContentDrawTarget(aSize, SurfaceFormat::B8G8R8A8);
if (!dt || !dt->IsValid()) {
NS_ERROR("Could not create a DrawTarget");
return nullptr;
}
RefPtr<gfxContext> context = gfxContext::ForDrawTarget(dt);
MOZ_ASSERT(context); // already checked the draw target above
auto result = Draw(context, aSize, ImageRegion::Create(aSize),
aWhichFrame, Filter::POINT, Nothing(), aFlags);
return result == DrawResult::SUCCESS ? dt->Snapshot() : nullptr;
}
already_AddRefed<DrawTarget>
gfxAlphaBoxBlur::InitDrawTarget(const DrawTarget* aReferenceDT,
const Rect& aRect,
const IntSize& aSpreadRadius,
const IntSize& aBlurRadius,
const Rect* aDirtyRect,
const Rect* aSkipRect)
{
mBlur.Init(aRect, aSpreadRadius, aBlurRadius, aDirtyRect, aSkipRect);
size_t blurDataSize = mBlur.GetSurfaceAllocationSize();
if (blurDataSize == 0) {
return nullptr;
}
BackendType backend = aReferenceDT->GetBackendType();
// Check if the backend has an accelerated DrawSurfaceWithShadow.
// Currently, only D2D1.1 supports this.
// Otherwise, DrawSurfaceWithShadow only supports square blurs without spread.
if (aBlurRadius.IsSquare() && aSpreadRadius.IsEmpty() &&
backend == BackendType::DIRECT2D1_1) {
mAccelerated = true;
mDrawTarget =
aReferenceDT->CreateShadowDrawTarget(mBlur.GetSize(),
SurfaceFormat::A8,
AlphaBoxBlur::CalculateBlurSigma(aBlurRadius.width));
} else {
// Make an alpha-only surface to draw on. We will play with the data after
// everything is drawn to create a blur effect.
mData = static_cast<uint8_t*>(calloc(1, blurDataSize));
if (!mData) {
return nullptr;
}
mDrawTarget =
Factory::DoesBackendSupportDataDrawtarget(backend) ?
Factory::CreateDrawTargetForData(backend,
mData,
mBlur.GetSize(),
mBlur.GetStride(),
SurfaceFormat::A8) :
gfxPlatform::CreateDrawTargetForData(mData,
mBlur.GetSize(),
mBlur.GetStride(),
SurfaceFormat::A8);
}
if (!mDrawTarget || !mDrawTarget->IsValid()) {
return nullptr;
}
mDrawTarget->SetTransform(Matrix::Translation(-mBlur.GetRect().TopLeft()));
return do_AddRef(mDrawTarget);
}
void
WinCompositorWidget::ClearTransparentWindow()
{
if (!mTransparentSurface) {
return;
}
EnsureTransparentSurface();
IntSize size = mTransparentSurface->GetSize();
if (!size.IsEmpty()) {
RefPtr<DrawTarget> drawTarget = gfxPlatform::GetPlatform()->
CreateDrawTargetForSurface(mTransparentSurface, size);
drawTarget->ClearRect(Rect(0, 0, size.width, size.height));
RedrawTransparentWindow();
}
}
Pair<DrawResult, RefPtr<SourceSurface>>
RasterImage::GetFrameInternal(const IntSize& aSize,
uint32_t aWhichFrame,
uint32_t aFlags)
{
MOZ_ASSERT(aWhichFrame <= FRAME_MAX_VALUE);
if (aSize.IsEmpty()) {
return MakePair(DrawResult::BAD_ARGS, RefPtr<SourceSurface>());
}
if (aWhichFrame > FRAME_MAX_VALUE) {
return MakePair(DrawResult::BAD_ARGS, RefPtr<SourceSurface>());
}
if (mError) {
return MakePair(DrawResult::BAD_IMAGE, RefPtr<SourceSurface>());
}
// Get the frame. If it's not there, it's probably the caller's fault for
// not waiting for the data to be loaded from the network or not passing
// FLAG_SYNC_DECODE.
DrawableSurface surface =
LookupFrame(aSize, aFlags, ToPlaybackType(aWhichFrame));
if (!surface) {
// The OS threw this frame away and we couldn't redecode it.
return MakePair(DrawResult::TEMPORARY_ERROR, RefPtr<SourceSurface>());
}
RefPtr<SourceSurface> sourceSurface = surface->GetSourceSurface();
if (!surface->IsFinished()) {
return MakePair(DrawResult::INCOMPLETE, Move(sourceSurface));
}
return MakePair(DrawResult::SUCCESS, Move(sourceSurface));
}
already_AddRefed<DrawTarget>
gfxAlphaBoxBlur::InitDrawTarget(const DrawTarget* aReferenceDT,
const Rect& aRect,
const IntSize& aSpreadRadius,
const IntSize& aBlurRadius,
const Rect* aDirtyRect,
const Rect* aSkipRect,
bool aUseHardwareAccel)
{
mBlur.Init(aRect, aSpreadRadius, aBlurRadius, aDirtyRect, aSkipRect);
size_t blurDataSize = mBlur.GetSurfaceAllocationSize();
if (blurDataSize == 0) {
return nullptr;
}
BackendType backend = aReferenceDT->GetBackendType();
// Check if the backend has an accelerated DrawSurfaceWithShadow.
// Currently, only D2D1.1 supports this.
// Otherwise, DrawSurfaceWithShadow only supports square blurs without spread.
// When blurring small draw targets such as short spans text, the cost of
// creating and flushing an accelerated draw target may exceed the speedup
// gained from the faster blur. It's up to the users of this blur
// to determine whether they want to use hardware acceleration.
if (aBlurRadius.IsSquare() && aSpreadRadius.IsEmpty() &&
aUseHardwareAccel &&
backend == BackendType::DIRECT2D1_1) {
mAccelerated = true;
mDrawTarget =
aReferenceDT->CreateShadowDrawTarget(mBlur.GetSize(),
SurfaceFormat::A8,
AlphaBoxBlur::CalculateBlurSigma(aBlurRadius.width));
} else {
// Make an alpha-only surface to draw on. We will play with the data after
// everything is drawn to create a blur effect.
// This will be freed when the DrawTarget dies
mData = static_cast<uint8_t*>(calloc(1, blurDataSize));
if (!mData) {
return nullptr;
}
mDrawTarget =
Factory::DoesBackendSupportDataDrawtarget(backend) ?
Factory::CreateDrawTargetForData(backend,
mData,
mBlur.GetSize(),
mBlur.GetStride(),
SurfaceFormat::A8) :
gfxPlatform::CreateDrawTargetForData(mData,
mBlur.GetSize(),
mBlur.GetStride(),
SurfaceFormat::A8);
}
if (!mDrawTarget || !mDrawTarget->IsValid()) {
if (mData) {
free(mData);
}
return nullptr;
}
if (mData) {
mDrawTarget->AddUserData(reinterpret_cast<UserDataKey*>(mDrawTarget.get()),
mData,
free);
}
mDrawTarget->SetTransform(Matrix::Translation(-mBlur.GetRect().TopLeft()));
return do_AddRef(mDrawTarget);
}
nsresult nsWindowGfx::CreateIcon(imgIContainer *aContainer,
bool aIsCursor,
uint32_t aHotspotX,
uint32_t aHotspotY,
IntSize aScaledSize,
HICON *aIcon) {
MOZ_ASSERT((aScaledSize.width > 0 && aScaledSize.height > 0) ||
(aScaledSize.width == 0 && aScaledSize.height == 0));
// Get the image data
RefPtr<SourceSurface> surface =
aContainer->GetFrame(imgIContainer::FRAME_CURRENT,
imgIContainer::FLAG_SYNC_DECODE);
NS_ENSURE_TRUE(surface, NS_ERROR_NOT_AVAILABLE);
IntSize frameSize = surface->GetSize();
if (frameSize.IsEmpty()) {
return NS_ERROR_FAILURE;
}
IntSize iconSize(aScaledSize.width, aScaledSize.height);
if (iconSize == IntSize(0, 0)) { // use frame's intrinsic size
iconSize = frameSize;
}
RefPtr<DataSourceSurface> dataSurface;
bool mappedOK;
DataSourceSurface::MappedSurface map;
if (iconSize != frameSize) {
// Scale the surface
dataSurface = Factory::CreateDataSourceSurface(iconSize,
SurfaceFormat::B8G8R8A8);
NS_ENSURE_TRUE(dataSurface, NS_ERROR_FAILURE);
mappedOK = dataSurface->Map(DataSourceSurface::MapType::READ_WRITE, &map);
NS_ENSURE_TRUE(mappedOK, NS_ERROR_FAILURE);
RefPtr<DrawTarget> dt =
Factory::CreateDrawTargetForData(BackendType::CAIRO,
map.mData,
dataSurface->GetSize(),
map.mStride,
SurfaceFormat::B8G8R8A8);
if (!dt) {
gfxWarning() << "nsWindowGfx::CreatesIcon failed in CreateDrawTargetForData";
return NS_ERROR_OUT_OF_MEMORY;
}
dt->DrawSurface(surface,
Rect(0, 0, iconSize.width, iconSize.height),
Rect(0, 0, frameSize.width, frameSize.height),
DrawSurfaceOptions(),
DrawOptions(1.0f, CompositionOp::OP_SOURCE));
} else if (surface->GetFormat() != SurfaceFormat::B8G8R8A8) {
// Convert format to SurfaceFormat::B8G8R8A8
dataSurface = gfxUtils::
CopySurfaceToDataSourceSurfaceWithFormat(surface,
SurfaceFormat::B8G8R8A8);
NS_ENSURE_TRUE(dataSurface, NS_ERROR_FAILURE);
mappedOK = dataSurface->Map(DataSourceSurface::MapType::READ, &map);
} else {
dataSurface = surface->GetDataSurface();
NS_ENSURE_TRUE(dataSurface, NS_ERROR_FAILURE);
mappedOK = dataSurface->Map(DataSourceSurface::MapType::READ, &map);
}
NS_ENSURE_TRUE(dataSurface && mappedOK, NS_ERROR_FAILURE);
MOZ_ASSERT(dataSurface->GetFormat() == SurfaceFormat::B8G8R8A8);
uint8_t* data = nullptr;
UniquePtr<uint8_t[]> autoDeleteArray;
if (map.mStride == BytesPerPixel(dataSurface->GetFormat()) * iconSize.width) {
// Mapped data is already packed
data = map.mData;
} else {
// We can't use map.mData since the pixels are not packed (as required by
// CreateDIBitmap, which is called under the DataToBitmap call below).
//
// We must unmap before calling SurfaceToPackedBGRA because it needs access
// to the pixel data.
dataSurface->Unmap();
map.mData = nullptr;
autoDeleteArray = SurfaceToPackedBGRA(dataSurface);
data = autoDeleteArray.get();
NS_ENSURE_TRUE(data, NS_ERROR_FAILURE);
}
HBITMAP bmp = DataToBitmap(data, iconSize.width, -iconSize.height, 32);
uint8_t* a1data = Data32BitTo1Bit(data, iconSize.width, iconSize.height);
if (map.mData) {
dataSurface->Unmap();
}
if (!a1data) {
return NS_ERROR_FAILURE;
}
HBITMAP mbmp = DataToBitmap(a1data, iconSize.width, -iconSize.height, 1);
PR_Free(a1data);
ICONINFO info = {0};
info.fIcon = !aIsCursor;
info.xHotspot = aHotspotX;
info.yHotspot = aHotspotY;
info.hbmMask = mbmp;
info.hbmColor = bmp;
HCURSOR icon = ::CreateIconIndirect(&info);
::DeleteObject(mbmp);
::DeleteObject(bmp);
if (!icon)
return NS_ERROR_FAILURE;
*aIcon = icon;
return NS_OK;
}
DrawableSurface
RasterImage::LookupFrame(const IntSize& aSize,
uint32_t aFlags,
PlaybackType aPlaybackType)
{
MOZ_ASSERT(NS_IsMainThread());
// If we're opaque, we don't need to care about premultiplied alpha, because
// that can only matter for frames with transparency.
if (IsOpaque()) {
aFlags &= ~FLAG_DECODE_NO_PREMULTIPLY_ALPHA;
}
IntSize requestedSize = CanDownscaleDuringDecode(aSize, aFlags)
? aSize : mSize;
if (requestedSize.IsEmpty()) {
return DrawableSurface(); // Can't decode to a surface of zero size.
}
LookupResult result =
LookupFrameInternal(requestedSize, aFlags, aPlaybackType);
if (!result && !mHasSize) {
// We can't request a decode without knowing our intrinsic size. Give up.
return DrawableSurface();
}
if (result.Type() == MatchType::NOT_FOUND ||
result.Type() == MatchType::SUBSTITUTE_BECAUSE_NOT_FOUND ||
((aFlags & FLAG_SYNC_DECODE) && !result)) {
// We don't have a copy of this frame, and there's no decoder working on
// one. (Or we're sync decoding and the existing decoder hasn't even started
// yet.) Trigger decoding so it'll be available next time.
MOZ_ASSERT(aPlaybackType != PlaybackType::eAnimated ||
!mAnimationState || mAnimationState->KnownFrameCount() < 1,
"Animated frames should be locked");
Decode(requestedSize, aFlags, aPlaybackType);
// If we can sync decode, we should already have the frame.
if (aFlags & FLAG_SYNC_DECODE) {
result = LookupFrameInternal(requestedSize, aFlags, aPlaybackType);
}
}
if (!result) {
// We still weren't able to get a frame. Give up.
return DrawableSurface();
}
if (result.Surface()->GetCompositingFailed()) {
return DrawableSurface();
}
MOZ_ASSERT(!result.Surface()->GetIsPaletted(),
"Should not have a paletted frame");
// Sync decoding guarantees that we got the frame, but if it's owned by an
// async decoder that's currently running, the contents of the frame may not
// be available yet. Make sure we get everything.
if (mHasSourceData && (aFlags & FLAG_SYNC_DECODE)) {
result.Surface()->WaitUntilFinished();
}
// If we could have done some decoding in this function we need to check if
// that decoding encountered an error and hence aborted the surface. We want
// to avoid calling IsAborted if we weren't passed any sync decode flag because
// IsAborted acquires the monitor for the imgFrame.
if (aFlags & (FLAG_SYNC_DECODE | FLAG_SYNC_DECODE_IF_FAST) &&
result.Surface()->IsAborted()) {
return DrawableSurface();
}
return Move(result.Surface());
}
